CVE-2025-22662

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the SendPulse Email Marketing Newsletter WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. This affects all WordPress sites using the SendPulse plugin versions up to 2.1.5.

💻 Affected Systems

Products:
  • SendPulse Email Marketing Newsletter WordPress Plugin
Versions: n/a through 2.1.5
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with vulnerable plugin versions are affected regardless of configuration.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator session cookies, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malicious sites.

🟠

Likely Case

Attackers steal user session cookies, perform actions as authenticated users, or redirect users to phishing pages.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

XSS vulnerabilities are commonly weaponized. Exploitation typically requires some level of access to inject malicious scripts.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.1.6 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/sendpulse-email-marketing-newsletter/vulnerability/wordpress-sendpulse-email-marketing-newsletter-plugin-2-1-5-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find SendPulse Email Marketing Newsletter. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the SendPulse plugin until patched

wp plugin deactivate sendpulse-email-marketing-newsletter

Implement Content Security Policy

all

Add CSP headers to restrict script execution sources

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Enable WordPress security plugins with XSS protection features

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > SendPulse Email Marketing Newsletter version

Check Version:

wp plugin get sendpulse-email-marketing-newsletter --field=version

Verify Fix Applied:

Verify plugin version is 2.1.6 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin endpoints
  • Suspicious script tags in form submissions
  • Multiple failed injection attempts

Network Indicators:

  • Requests containing common XSS payloads like <script>, javascript:, or onload=

SIEM Query:

source="wordpress.log" AND ("sendpulse" OR "<script>" OR "javascript:")

🔗 References

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